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Species profile

Cross River Puffer

Tetraodon pustulatus

Common names: Cross River Puffer

Recognized speciesPufferfish
Cross River Puffer (Tetraodon pustulatus)

Adult size

Up to 30 cm

Up to 30 cm

Countries of origin

  • See all stock from Cameroon
  • See all stock from Nigeria

Good fit for your tank?

Good fit for

  • An experienced keeper with a large river-style tank

Think carefully if

  • Wild-caught imports concern you, given its Endangered status
  • You also keep shrimp or snails you want to protect, because this puffer will eat them
  • You keep similar-sized fish, which may get bitten

An endangered West African puffer that grows to 30 cm. Imports are scarce and costly, and it needs a 540 litre tank with strong flow.

Appearance and Identification

A large puffer with a warty skin texture and a mottled body, named pustulatus for the small bumps on its skin.

Rarely seen, and usually sold at a high price by specialists. FishBase records it at up to 40 cm.

No obvious differences have been noted.

Tank Requirements

Suggested filter
About 2,160–2,700 litres an hour
Suggested heater
About 550–800 W for this tank
Minimum tank volume
540 litres
Minimum tank length
150 cm
Minimum group size
1
Recommended group size
1
Activity level
Moderate
Flow preference
Moderate
Planting preference
Open swimming space required
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Use a large, strongly filtered tank with moderate flow and plenty of open space.

Behaviour and Tankmates

An inquisitive fish that mainly hunts slow or fixed prey.

Usually kept alone.

May bite fish of a similar size, out of curiosity or aggression.

Small, quick, peaceful fish are largely ignored, but similar-sized fish such as bichirs or large cichlids may be bitten. It will eat shrimp and snails.

Check tankmates for this species

Water Parameters

Temperature
20–28 °C
pH
6.5–7.5
GH
5–26
Stability importance
Very important

A freshwater puffer. It can tolerate slight salt but does not need it.

Parameter caveat
Puffers are messy feeders and sensitive to waste, so keep up regular water changes and use a filter rated for a larger tank.

Feeding

Diet types
Carnivore, Predator
Feeding frequency
Once or twice daily
Preferred foods
  • Snails and mussels in the shellEssential. Crushing shells wears down the beak, which never stops growing.
  • Crab legs, prawns and cocklesFeed unshelled where you can, for the same reason.
  • EarthwormsA useful meaty food, and many puffers take them readily.

Eats mainly snails, mussels and crustaceans, with some other invertebrates and fish.

Check the beak regularly. If it overgrows, the fish can no longer eat and the teeth may need to be trimmed by someone experienced.

Breeding

Breeding difficulty
Not commonly bred
Parental care
Unknown

Has not been bred in captivity.

Habitat and Origin

Geographic origin
Africa, Cameroon, Nigeria
Natural habitat
Fast Stream, River
Aquarium contexts
Large Freshwater Aquarium, Species-Only Aquarium
Audience level
Specialist

Classification

Profile type
Recognized species
Genus
Tetraodon
Family
Tetraodontidae
Species group
Fish, Pufferfish

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